title: [Studies on the structure of scuteamoenin from the root of Scutellaria amoena].
abstract: In containing our studies on the flavonoids from Scutellaria amoena C.H. Wright, a new flavanone (I) and six known compounds (II-VII) were isolated from the roots of this plant. On the basis of spectroscopic analysis (UV, 1H NMR, 13C NMR, MS and CD) and chemical evidence, the structure of the new compound was elucidated as (2S) -2',5,6'-trihydroxy-7-methoxyflavanone (I) and named scuteamoenin, the other six known compounds were identified as (2R,3R) -3,5,7-trihydroxyflavanone (II), 2',3,5,6,7-pentahydroxyflavone (III), 2',5,7-trihydroxy-6-methoxyflavone (IV), skullcaflavone II (V), chrysin (VI) and beta-sitosterol (VII) respectively. Compounds II-VII were obtained from this plant for the first time.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing.
authors.forename: B H
authors.initials: BH
authors.lastname: Hu
authors.forename: Y L
authors.initials: YL
authors.lastname: Liu
authors.forename: T
authors.initials: T
authors.lastname: Zhang
authors.forename: W Z
authors.initials: WZ
authors.lastname: Song
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D044950:Flavanones; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D044950:Flavanones; D005419:Flavonoids; C067160:scuteamoenin